Document 183-1 Magnetics for LM258x Flyback Regulator These standard flyback regulator transformers are designed for use with Texas Instruments LM2585, LM2586, LM2587 and LM2588 SIMPLE SWITCHER(R) switching regulators. They are available in surface mount and through hole configurations. All feature 500 V isolation between windings and a variety of available turns ratios. Volt-time Input Inductance Inductance product Leakage DCR (Ohms) Ref. Part voltage at 0 Adc at I pk max Inductance1 number number (V) 15% (H) min (H) (Vsec) max (H) pri sec T1 (SM) Q4435-BL 4 - 6 22 19.0 166.5 0.7 0.020 T1 (PC) Q4434-BL 4 - 6 22 19.8 162.0 2.0 0.028 T2 (SM) Q4436-BL 4 - 6 22 17.6 166.5 0.5 0.025 T2 (PC) Q4337-BL 4 - 6 22 19.8 162.0 2.0 0.030 T3 (PC) Q4343-BL 18 - 36 85 76.5 364.5 3.5 0.150 T4 (PC) Q4344-BL 18 - 36 85 76.5 364.5 3.5 0.145 T5 (SM) Q4437-BL 18 - 36 55 47.3 299.7 2.0 0.110 T5 (PC) Q4338-BL 18 - 36 66 59.4 499.5 3.5 0.090 T6 (SM) Q4438-BL 18 - 36 65 57.0 299.7 3.0 0.065 T6 (PC) Q4339-BL 18 - 36 66 59.4 499.5 3.0 0.090 T7 (SM) S6057-AL 4 - 6 47 40.0 233.1 2.0 0.065 T7 (PC) S6000-AL 4 - 6 47 40.0 212.6 2.0 0.065 1. Leakage inductance measured across the primary at 0.10 Vrms, 100 kHz. 2. DC current at which the primary inductance is measured. 3. Electrical specifications at 25C. Refer to Doc 362 "Soldering Surface Mount Components" before soldering. Ipk2 Turns ratio pri : sec 0.025 0.028 0.23 (10-11) 0.25 (9-8) 0.32 (8-7) 0.32 (6-5) 0.011 (10-9) 0.011 (7-6) 0.20 (10-9) 0.20 (7-6) 0.03 (4-5) 0.035 (10-11) 0.30 (9-8) 0.32 (4-5) 0.039 (8-7) 0.58 (6-5) 0.60 (3-4) 0.15 (10-11) 0.15 (9-8) 0.20 (8-7) 0.24 (5-6) 0.065 0.042 1:1 1 :1 1 : 2.5 1 : 2.5 1 : 2.5 1 : 2.5 1 : 0.8 1 : 0.8 1 : 0.8 1 : 0.8 1 : 0.35 1 : 0.5 1 : 1.167 1 : 1.167 1 : 0.5 1 : 1.167 1 : 1.167 1 : 1.2 1 : 1.2 1 : 1.2 1 : 1.2 1 :1 1 :1 Output (A) 5 V, 1.6 A 5 V, 1.6 A 12 V, 0.35 A 12 V, 0.35 A 12 V, 0.35 A 12 V, 0.35 A 12 V, 1.4 A 12 V, 1.4 A 12 V, 0.75 A 12 V, 0.75 A 5 V, 3.0 A 5 V, 1.8 A 12 V, 0.25 A 12 V, 0.25 A 5 V, 1.8 A 12 V, 0.25 A 12 V, 0.25 A 12 V, 0.63 A 12 V, 0.63 A 12 V, 0.63 A 12 V, 0.63 A 5 V, 0.9 A 5 V, 0.9 A 4.85 5.0 5.0 5.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 Core material Ferrite Ambient temperature -40C to +85C Weight Q4435-BL: 9.0 g Q4337-BL: 11.4 g Q4436-BL: 8.7 g Q4338-BL: 11.5 g Q4437-BL: 8.2 g Q4339-BL: 11.6 g Q4438-BL: 8.6 g Q4343-BL: 25.1 g S6000-AL: 10.6 g Q4344-BL: 23.1 g S6057-AL: 8.2 g Q4434-BL: 11.5 g Storage temperature Component: -40C to +85C. Tray packaging: -40C to +80C Resistance to soldering heat (SM parts) Max three 40 second reflows at +260C, parts cooled to room temperature between cycles Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30C / 85% relative humidity) Failures in Time (FIT) / Mean Time Between Failures (MTBF) 38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332 PCB washing Tested with pure water or alcohol only. For other solvents, see Doc787_PCB_Washing.pdf. US +1-847-639-6400 sales@coilcraft.com UK +44-1236-730595 sales@coilcraft-europe.com Taiwan +886-2-2264 3646 sales@coilcraft.com.tw China +86-21-6218 8074 sales@coilcraft.com.cn Singapore + 65-6484 8412 sales@coilcraft.com.sg Document 183-1 Revised 05/09/18 (c) Coilcraft Inc. 2018 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information. Document 183-2 Magnetics for LM258x Flyback Regulator Schematics - Surface Mount (SM) T1 T2 Q4435-BL 10 3 11 10 3 12 V, 0.35 A 5 V, 1.6 A 2 11 9 2 Q4438-BL Q4437-BL 10 3 T6 T5 Q4436-BL 12 V, 0.63 A 5 V, 1.8 A 11 9 2 12 V, 0.35 A 11 9 2 12 V, 0.63 A 12 V, 0.25 A 8 8 8 4 T7 12 V, 0.25 A S6057-AL 5 10 3 10 3 5 V, 0.9 A 11 2 Schematics - Leaded (PC) Q4337-BL 7 2 8 10 1 12 V, 0.35 A 8 6 1 T4 Q4344-BL Q4343-BL 7 2 5 V, 1.6 A 1 T3 T2 T1 Q4434-BL 1 12 V, 1.4 A 9 7 2 12 V, 0.35 A 12 V, 0.75 A 2 9 7 12 V, 0.75 A 12 V, 1.4 A 5 10 6 4 6 5 V, 3.0 A T6 T5 Q4339-BL Q4338-BL 2 7 2 1 8 6 12 V, 0.25 A 5 3 S6000-AL 7 1 8 6 7 2 12 V, 0.63 A 5 V, 1.8 A 5 T7 5 V, 0.9 A 1 8 12 V, 0.63 A 5 12 V, 0.25 A 4 US +1-847-639-6400 sales@coilcraft.com UK +44-1236-730595 sales@coilcraft-europe.com Taiwan +886-2-2264 3646 sales@coilcraft.com.tw China +86-21-6218 8074 sales@coilcraft.com.cn Singapore + 65-6484 8412 sales@coilcraft.com.sg Document 183-2 Revised 05/09/18 (c) Coilcraft Inc. 2018 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information. Document 183-3 Magnetics for LM258x Flyback Regulator Surface Mount (Q4435-BL, Q4436-BL, Q4437-BL, Q4438-BL, S6057-AL) 1.00 max 25,4 See table 0.114 x 0.020 2,90 x 0,51 0.615 15,62 0.843 21,41 Part number Height max in/mm Q4435-BL Q4436-BL Q4437-BL Q4438-BL S6057-AL 0.60/15.24 0.60/15.24 0.60/15.24 0.60/15.24 0.57/14.50 0.610 15,49 0.145 3,68 Top view 1 12 0.030 0,76 1 0.75 max 19,05 0.150 3,81 0.150 3,81 6 0.100 2,54 0.100 2,54 0.004/0,10 7 Recommended Land Pattern 0.733 18,62 Dimensions are in Terminations RoHS tin-silver over tin over copper clad steel. Packaged 49 parts per tray inches mm Leaded - T1, T2, T5, T6, T7 (Q4434-BL, Q4337-BL, Q4338-BL, Q4339-BL, S6000-AL) 0.950 max 24,13 Bottom view 1 5 4 0.700 max 17,78 0.514 13,06 0.15 (1 place) 3,81 0.825 max 20,96 1 0.20 (5 places) 5,08 8 0.060 1,52 0.025 x 0.025 0,635 x 0,635 0.180 max 4,57 Recommended Board Layout Standoffs Dimensions are in Terminations RoHS tin-silver over tin over nickel over phos bronze. Packaged 49 parts per tray inches mm Leaded - T3, T4 (Q4343-BL, Q4344-BL) 1.10 max 27,94 Bottom view 5 0.950 max 24,13 0.0346 0,879 1 6 0.620 15,75 0.15 (1 place) 3,81 1.10 max 27,94 1 10 0.20 (7 places) 5,08 0.060 1,52 0.180 max 4,57 Standoffs Terminations RoHS tin-silver over tin over copper. Packaged 30 parts per tray US +1-847-639-6400 sales@coilcraft.com UK +44-1236-730595 sales@coilcraft-europe.com Taiwan +886-2-2264 3646 sales@coilcraft.com.tw China +86-21-6218 8074 sales@coilcraft.com.cn Singapore + 65-6484 8412 sales@coilcraft.com.sg Recommended Board Layout Dimensions are in Document 183-3 inches mm Revised 05/09/18 (c) Coilcraft Inc. 2018 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information. Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Coilcraft: Q4436-BL Q4344-BL Q4438-BL Q4338-BL Q4337-BL Q4339-BL S6057-AL Q4434-BL Q4435-BL Q4343-BL S6000-AL Q4437-BL